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Select this link to open drop down to add material National Library of Virtual Manipulatives to your Bookmark Collection or Course ePortfolio

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Select this link to open drop down to add material Eye Opener Series to your Bookmark Collection or Course ePortfolio

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This manipulative allows you to construct factor tree(s) of prime factors for one or two numbers, and then from the prime...
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This manipulative allows you to construct factor tree(s) of prime factors for one or two numbers, and then from the prime factorization of two number, you are asked to identify the Least Common Multiple (LCM) and the Greatest Common Factor (GCF) of the two given numbers using a Venn Diagram.

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Select this link to open drop down to add material NLVM - Factor Tree to your Bookmark Collection or Course ePortfolio

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Select this link to open drop down to add material Walter Fendt's Mathematics Applets to your Bookmark Collection or Course ePortfolio

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Mathway is a mathematics problem solving tool where students can select their math course - Basic Math, Pre-Algebra, Algebra,...
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Mathway is a mathematics problem solving tool where students can select their math course - Basic Math, Pre-Algebra, Algebra, Trigonometry, PreCalculus, Calculus or Statistics and enter a problem. The computer solves the problem and shows the steps for the solution. It also has a worksheet generator.

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Complete sim of an abacus, and it even translates the bead positions into a numerical representation. Includes tutorials on...
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Complete sim of an abacus, and it even translates the bead positions into a numerical representation. Includes tutorials on adding and subtracting with an abacus, as well as info on the history and cultural background of the tool. Source code freely available.

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Select this link to open drop down to add material Abacus to your Bookmark Collection or Course ePortfolio

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Select this link to open drop down to add material Pattern Blocks to your Bookmark Collection or Course ePortfolio

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A series of tutorials on basic measurement theory, including such topics as experimental errors, measurement, accuracy and...
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A series of tutorials on basic measurement theory, including such topics as experimental errors, measurement, accuracy and precision, exact numbers, and significant figures (digits). Applet calculators included, along with quizzes.

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